192 clutches and power-stop control – Clutches – Fluent material
Patent
1998-03-12
2000-06-27
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Fluent material
192 82T, 192103R, F16D 4800, F16D 3500
Patent
active
060795360
ABSTRACT:
An arrangement for controlling the rotational speed of an output rotational part of a fluid friction coupling is provided. A fan for cooling components of a motor vehicle is coupled with a driving rotational part by way of a shearing fluid whose effective fluid quantity determines the transferrable torque. The arrangement contains an adjusting unit (which can be electrically driven in a timed manner) for the variable adjustment of the effective shearing fluid quantity and contains a temperature controller stage to which the temperature of at least one medium whose temperature can be influenced by the output rotational speed is fed. The invention, the temperature controller stage is followed by a rotational speed controller stage to which, on the input side, the output signal of the temperature controller stage is fed as the dessired rotational output speed as well as the rotational driving speed and which, via of its output signal, drives the shearing fluid quantity adjusting unit of the coupling. The arrangement is usable for controlling the rotational speed of an engine fan in a motor vehicle.
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Patent Abstracts of Japan, 4-258529 A, M-1358, vol. 17, No. 38 (Jan. 25, 1993).
Hans Martin, "Electronically Controlled Electromagnetic VISCO.RTM. Fan Clutches for Commercial Vehicles", ATZ Automobiltechnische Zeitschrift, vol. 5, NO. 93 (1995).
Hummel Werner
Maier Uwe
Schultheiss Gerold
Singer Horst
Behr GmbH & Co.
Bonck Rodney H.
GKR Gesellschaft fuer Fahrzeugklima-regelung mbH
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